07-13-2018, 02:43 AM
Low mass bcg work fine long as you use the adjustable gas and run the correct buffer and buffer spring.
I'm useing no lowmass bcg in all of my grendels, they all have adjustable gas and jp scs setups but can pull the scs and run a standard rifle buffer and spring just as well.
I only use rifle length stocks so can't really say how well the lowmass gear in grendel would work on the shorter stock setups.
As far as bolts go seen a few grendel bolts online tonight on sale for round 60 bucks but my choice is the jp bolt that's all I use pricey but like all JP gear it's built very well.
400 for the upper sounds like a good price if it's in good condition and nothing is wrong with it.
I'm useing no lowmass bcg in all of my grendels, they all have adjustable gas and jp scs setups but can pull the scs and run a standard rifle buffer and spring just as well.
I only use rifle length stocks so can't really say how well the lowmass gear in grendel would work on the shorter stock setups.
As far as bolts go seen a few grendel bolts online tonight on sale for round 60 bucks but my choice is the jp bolt that's all I use pricey but like all JP gear it's built very well.
400 for the upper sounds like a good price if it's in good condition and nothing is wrong with it.